Stop-motion and reversing mechanism of looms.



, No. 891,618. PATENTED JUNE 23 E. HOLLINGWORTH.

STOP MOTION AND REVERSING MEGHAN ISM OP LOOMS.

AlPLIOATION FILED MAY 13. 1904.

4 SHEETSSHEET 1.

1%,. 891,618. PATBNTED JUNB28, 1908.

' E. HOLLINGWORTH.

STOP MOTION AND REVERSING MECHANISM OF LOOMS.

APPLICATION FILED MAY 13. 1904.

4 SEEETS-SHEET 2.

PATENTED JUNE 23, 1908.

E. HOLLINGWORTH. 7 STOP MOTION AND REVERSING MECHANISM OF LOOMS.

APPLIOATION PILED MAY 13, 1904.

. 4 SHBETSSHEET 3 km/0mm Q 96 T A/01,201,4-

No. 891,618. I PATENTED'J'UNE 223 1908. E. HOLLINGWORTH. STOP MOTION ANDREVERSING MECHANISM OF LOGMS APPLIGATION TILED MAY 13, 1904.

4 SHEBTS-SHEET UNITED srarns PATENT OFFICE.

jlllMVARli HOLLTNGWORTH. OF DOBCROSS, ENGLAND, ASSTQNOR TO OROMPTON dzKNOWLES l.-OO\1 WORKS, A CORPORATION OF MASSACHUSETTS.

STOP-MOTION AND REVERSING MECHANISM OF LOOMS.

Specification of Letters Patent.

Patented June as, 1908.

Application filed May 13, 1904. Serial No. 207,831.

1/ 0 (171 whom. it may concern:

Be it known that l, EDWARD llOLLING- 'wonrn, a subject of King Edwardthe ideel'ianism of Looms, of which the following description, inconnection with the. accompanying drawings, is a specification.

This invention in or connected with the weft stop mechanism and in theheddle or dobby operating and boxmechanism of looms for weaving.consists, firstly, in providing means to act in conjunction with theweft fork, or weft fork mechanism, for throwing the heddle or dobbyoperating and box mechanism and picking mechanism out of action ordisconnecting them from the loom, immediately the weft fork operates onthe failure or absence of weft, apart from the stoppage of th oomby theactuation of the shipper ha le to shift the strap from the fast to theloose pulley, in the usual way, and, secondly .of improvements in meansfor reversing the loom mechanically in lagging back, either one pick ata time, or any number of picks in succession, by the slightest movementor pressure of the hand and without throwing the least strain on theweaver.

In weft stop motions as at present constituted, the-loom is liable toover-run itself by its own momentmn after the weft fork or feclermechanism has operated to stop it and, consequently, before the faultcan be remedied, the loom may have to be turned back to bring the partsinto the position they ought to ori-cupy for the re-introduc- (ion ofthe pick.

The object of this part of my present invention is to provide, inaddition to means for actuating the usual lmock-oll' rod to move theshipper handle to transfer the driving strap from the fast to the loosepulley, novel and ell'ective means for disconnecting or throwing out ofaction instantaneously on the weft breaking or failing, both theshedding or heddle operating and box mechanism and the that the weavingoperation, as regards both the formation or change of shed and move"-ment of the shuttle boxes and the picking of the shuttle, may ceaseapproximately at the same time as the weft fork motion o erates on thefailure or breakage of the we 't picking motion, in order elevation,seen from the end of the whereby although the lay may be moved in excessor over-run itself by reason of the momentum of the loom, it will haveno effect on the operative parts-of the loom which will be ready forstarting again immediately the weft is pieced up, or a fresh supplyintroduced. I

. My invention further comprises means for mechanically turning back theloom to find broken picks, or for other causes, the object of this partof my invention beingto relieve the weaver of all strain and minimizelabor and time in lagging back.

' In the accompanying drawings :-Figure;l is a front elevation ofoneside of a loci-1.1 showing a portion of my improvements appliedthereto, Fig. 2 l is an end elevation lookin in the direction'of arrow AFig. 1. Fig. 3 1s an elevation of a portion of the lay and breast beam,showing the-connections from the weft fork motion for actuating. theparts fordisconnecting the picking motion,- and the shedding or heddleoperating and box mechanism, on failure or breakage of Weft; Fig. 4 is aplan of Fig. 3. Fig. is an loom, of the picking motion, detached,showing the means I employ for disconnecting the picking motion from theloom on the breakage or failure of weft. Fig. 6 is an elevation of Fig.5, looking from the rear of the loom, that is, in the direction of arrowB Fig.5 Fig. 7 is a plan of the lever and shoe for actuatm the usualknocking-01f rod. F ig. 8 is an e evation of the clutch box mechanism onthe usual vertical shaft which conveys motion to the shedding mechanism,showing the means for unclutehing the clutch nicmhers to dis connect theshedding mechanism from the loom on the breakage or failure of weft;Fig. 9'is a detached elevation showing the application of my improvedmeans for mehanically turning back the loom to find broken picks, theparts being in their normal or inoperative positions, as when the loomis weaving; Fig. l() is a similar elevation to Fig. 9 showing the partsin their operative positions for mechanically reversing the loom: Figs.3 to' It) are on an enlarged scale.

vReferring to the drawings. and to in this instance, I pivotally connectto the earn slide or cam faced rocking arm 12, a rod or link 13 whichreceives motion therefrom and whose free end extends through an openingin a lug 14- projecting from a tumbling or" ivoted at 15 on a bracketlocking lever 14,

and which 16 bolted to the rout of the lay,

is adapted to be oscillated on its pivot by theengagement of a collar orenlargement 13 on the rod or link 13, with the lug 14, as said rod ismoved endwise to the left under the action of the cam slide or cam facedarm 12 which, as is well known to those skilled in the art, has aconstant oscillatory motion imparted to it to act on the feeler to feelthe illing and, on the absence or breakage of the filling, is locked inthe position shown at Fig. 1 by the engagement of the outer end 17 ofthe feeler with a recess in the cam faced arm or slide 12,-and themotion of the arm 12 arrested.

The cessation of motion of the cam slide or arm 12 brought about by weftbreakage or exhaustion, prevents the rod or link 13 from com leting itsendwise movement to the left and, consequently, it does not move farenough to brin the collar or enlargement 13 into contact with the lug 14on the lever 14 which, therefore, remains in its lowest position withits hook shaped end resting on the 1 upper edge of a slide 18 supportedand guided in ways in the bracket 16, and moved longitudinally of thelay by means of a radius bar or rod 19 pivotally connected at one end tothe slide 18 and at the opposite end to a slide 20'supported by abracket 21 secured to the breast beam and movable thereon against thetension of a spring 22. 1 I

It will be manifest that so long as the weft is resent or intact, thecollar on the rod or lin 1.3 will be brought into abutment with thecatch lever 14 at every endwise movement of the rod in that direction,and said lever will be moved on its center to lace the hooked end orcatch thereon clear ol a shoulder or projection 18 on the slide 18 thisis moved toward the center of the loom on the beat up of the lay, andallow of the full free movement of said slide to the extent determinedby the angle of movement of the radius bar 19 whose point of connectionwith the slide on the breast beam is maintained in a fixed position bythe resistance of spring 22 to movement of the slide 20. When, however,the weft breaks or is absent, the locking of the arm 12 by the weftfecler holds the link 13 in inoperative position, whereby the tumblingor catch lever 14- is allowed to remain downand, the lay beats up, theprojection 18 on the slide 18 engages Withthe hooked end of said leverand. prevents further movement of said slide,

The locking of the slide 18 causes the thrust of the radius rod 19 to betransferred to the slide 20 on the breast beam, which is forced bodilyendwise against the action of the spring 22, a roll 01' stud 23 on saidslide, in its outward movement, abutting against a vertical hand lever24 mounted on a stud on the breast beam and rocking said lever, thelower end thereof riding over an inclined or cam surface 25 on one endof a centrally pivoted lever 25, and moving it upon its ivot center. Oneend, namely, the inner end of lever 25, is coupled by red 26 to a leveror arm 27 fast on a rock shaft 28 arallel with the picking shaft 5 andsupporte in bearings in brackets bolted to the side frame of the loom,the movement of lever 25 through link or rod 26 rocking the'shaft 28 andcausing a finger 29 fast thereon to engage a stud or roll 30 on a lever31 pivoted at 32 to the usual picking arm 33 and to elevate said leverfrom. the position shown in full line to that shown in dotted line inFig. 6, thereby removing the catch or foot of said lever out ofengagement with a shoulder or offset 34 on a segment or locking device34 fast on the picking shaft 5, and disconnecting the picking arm orlever 33 from connection with the picking shaft 5,

by which means the picking. motion 15 thrown out of action im-medlatelyon the weft break-.

ing or failing. The picking arm or lever 33 is mounted loosely on theprojecting hubs of the segment or device 34. A spring actuated lever 35carried by the picking arm 33 bears upon the stud or roll 30 and servesto hold the latch or looking lever 31 in engagement with the shoulder 34on the segment when in normal position and the loom weaving, and alsoacts to insure reinstatement of the parts after being moved as describedto inoperative position,

The vertical lever 24 is connected by rod or link 36 to a dependinglever 36 pivoted on a stud on the breast beam and having an inclinedsurface thereon which is adapted to engage an inclined or curved surfaceon a shoe 37 fast on the usual stop rod 3, the actuation of saidvertical lever, as before described, drawing the lever 36 in the samedirection, and as it rides over the cam or inclined surface on the shoe,the latter is forced back and rocks the rod 3 accordingly to actuate theshipper to transfer the strap from fast to loose pulley and stop theloom. The 0 )positc movement of the other or outer arm of the centrallypivoted lever 25 caused by the engagement of the vertical lever 24therewith, as previously explained, serves, through link 38 pivotallyconnected thereto and to one lar groove 45 is the horizontal bar or rod41 the other or lower c uteh member 45-fast on shaft 11, and enter anropening it) in the bevel gear to lock tlleshaft l1 and bevel car 10together, said stud having cut or ormed in one side thereof a. recess orcut out 44 (Fig. 2) having its upper epd suitablyin- .clined. or curvedfor the purpose hereafter 7 described.

The lower-clutch member 45 has an annu- 1a groove 45 cut or formedtherein, to-

Which, when the members 43 and 45 are in clutch, the recess or cut out44" or upper part of said recess or cut-out in the depending stud, isexposed.

Opposite to or in alinement with the annuwhich is provided witha'laterallyjnclined nose 41 corresponding to the angle of the upper endof the recess 44 and adapted to engage same to elevate" mein er. Thesecond liar 42 is arranged above and parallel to the first named bar andin a position to entel: the space formed between the two clutchanemberswhen unclutched. Each bar is's'upported and guided horizontally in waysin brackets 46 bolted to the side frame of the loom, and they haveconfined between shoulders or collars 41, 42 thereon and the enlargedend of the connecting rod 40 through which said head the reduced ends ofthe bars loosely pass, spiral springs 41", 42 against which the head ofrod 40 acts when moved to force the bars 41, 42, endwise in theirbearings towards the clutch device, said springs serving to takeupmotion or admit of independent movement of the bars.

The

m of the cen- V. .s, through the comprising link at), a horizontal orrods 4], 42, he annular groove in 1e lov c ch member whereby on thedepending-st ud 24 on the up per member 43 being brought during therotation of the clutch box into contact'with said bar, the nose thereofengages the inclined or cam surface at thenpper end of the notch orrecess 44 in the stud and forces the stud and upper clutch member intotheir highest position and out. of engagement with the bevel wheel 10,as shown at Fig. 8, whereupon the heddle or (lobby and box mechan- 5 ismis at once disconnected from the loom the sliding clutchthereofbetwcenthe two clutch members to hold them apart .until the loomis started again, as shown at Fig. 8. v

' A cam ortappet 47 or like device mounted, say, on the crank shaft ofthe loom, acts through a pivot-ed lever 47 to withdraw the horizontalbar 41, out of engagement with annular groove 45 after the top bar 42has. moved to its position to hold the clutch members out of gear.

In the'annular groove 45 is secured or formed to the rear of the stud44, a stop piece 45 (Fig. 2) which engages the bar 41 after the latterhas elevated the upper clutch member to its inoperativeposition toprevent further rotation of thejclutches after disengagement with thebevel gear 10. There is also secured or formed on theupper clutchmemberf43 an inclined stop piece 43 (Fig. 8) wlmse, rear edge is to beengaged by a hold ing lever 48 when the bevel gear has been disconnectedfrom the vertical shaft, to prevent backward movement of the clutchmembers.

' So far as I am aware, it is new to combine with aweftstop motion,auxiliary or sup-plenientary' means for self actingly or automaticallydisconnecting the picking and heddle or dobby operating and boxmechanism from-"the loom in addition to stopping the loom itself, and toerform such functions immediately the. fee er acts on detection of theabsence or breakage of weft, or on the pick, and it will therefore beunderstood that I do not confine myself to the details or preciseconstruction of the mechanism herein described or to the connectionsemployed,

or arrangement of the parts, as such connections or parts and theirarrangement may be varied 1n many ways to suit the construction oi loomto which the same may he applied,

without departing from the nature and scope of my invention.

For the purposeof mmzhanicallyturning back the loom to find broken picksor for other causes and thus relieve-the weaver of all strain, andminimizelabor anrLtimc in laggingb'ack, I have devised simple means forreversing the motion of the The actuating hand lever 50 (Fig. 1) maycom, one pick at a time, or any number of picks in suc-.

'ed at its opposite end to one arm of an angle I lever 54 mounted on astud secured to a.

bracket bolted to the loom arch or framing of the dobby mechanism To theother arm of the anglelever 54 is pivotally connected a rod or bar 55 suported vertically in bearings in the loom rame and having its upper endsuitably shaped to enter. and engage when elevated into the annulargroove 56,

. in a clutch member 56, a recess or cut out 57 in a sliding studor pincarried by the clutch member 56 loose on the shaft 58 of the cylindergear or heddle operating and box mechanism, and to force said stud orpin outward, the end thereof. abutting against the face of a loosepulley 59 onfwhich is a stud or projection 59"and moving it laterally onits shaftto place said stud or projecting piece 59 out of engagementwith or clear 0 the clutch member 56 to disconnectthe parts.

The movement of the rock shaft 51' to elevate' the bar or rodor plunger55 may be effected b a strong sprmg'GO (Figs. 1 and 2) attache at oneend to a strap or flexible connection secured to a boss faston the saidshaft and at the opposite end secured to a fixed stud or bracket, thesaid rod or bar being normally held in such elevated position tomaintain the clutch members apart.

. It will beobvious that in place of the spring 60 any other e uivalentmeans for holding the rod or p unger 55 normally yieldingly elevated maybe employed.

When it is desired to 'reverse the loom or to lag back to find a brokenpick, or for any other cause, the weaver de resses the oscillatory handlever 50 by a s ight blow or pressure of the hand, ing shaft 51, andthrough rod or link 53 and lever 54, drawing down the rod or bar 55whose upper of the pin or stud 57 and the latter released. As soon asthis takes place, a strong spring 61 pressing against the hub or outerface of the pulley 59 acts to force such pulley laterally on its axis,whereby the cutching device or projection 59 enga ement with theopposing recess in the clutc member 56 and the opposite end of thesliding stud 57 placed in the path of a lu 562 on the rear of the nearbevel wheel of in; ordinary head motion ear, whereby the pulley 59 andclutch mem or 56 are locked to the shaft 58 and the motion of the loomreversed for one pick. The pulley 59 is driven by astrap from the maindriving shaft of the loom and independently of the crank shaft 6.

described may be a tions acting the movement thereof rockend or nose isthus carried clear tion device, whereby,

thereon is broughtinto if the oscillatory handler/M50 is held downinstead of being simply struck, the loom will continue its reversemotion for any number of picks until Fnzi'l lever is again released. Themoment Lhe lever 50 is ,released, the rod 55 is moved upwardly by theaction of the spring 60 and when the in or stud 57 is brought round inthe comp etion of a revolution of the clutch members, the nose of saidbar again enters the recess or notch 57 and acting against the inclinedor curved end thereof, forces the pin or stud endwise. against thepulley 59 laterally on the shaft 58 into its normal or ino erativeposition.

he head motion gear above referred to, illustrated in Fig. 2, andcomprising the shedding or heddle and box operating mechanism, is, ormay be, substantially the same as that shown in my Patent No. 469,210,granted Feb. 16, 1892, and in the presentinvention the shaft 58correspon 13 of the said patent. that the'loom'will be stopped when itmay be desired to mechanically reverse the head motion gear, theindependently driven ulley 59 is provided; and when the said pu ey isclutchedto or in driving connection withthe shaft. 58 the said shaftwill be driven reversely to its normal direction of rotation, for the uose of reversing the head-motion gear; t e riving shaft 11, for the saidhead motion (gear, being at this time,

, unclutched or disconnected from its driving bevel gear 10,

The mechanical reversing motion above plied to any existing derstoo andforces it I v date the shaft In view of the fact it will be unlooms ofthe type ilustrated or looms of similar construction, and may be.employed apart from the means first herein described for disconnectingthe heddle and box operating and picking mechanisms, the twomoindependently of each other.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is 2- 1. In a loom, provided with a weftstop-motiondevice, of a picking motion device, and means, connected withand operated when the latter is operated to stop the loom, the saidpicking motion device will be automatically disconnected from itsoperating part.

2. In a loom, the combination with a lay and a weft stop-motion devicecarried thereby, of a shedding or heddle-operating and box mechanism, ashaft for operating sai mechanism, actuating means for said shaft, aclutch intermediate said shaft and its actuatingmeans, andmeans,connected with 3.111 a loom, the combination with a lay the combinationwith a lay from said weft stop-moand a weft stop-motion device carriedby said lay, of a head-motion gear, and means, connected with andoperated from said weft stop-motion device, whereby, when the latter isoperated to etc the loom, the said head-motion gear will e automaticallydisconnected from its operating means 4. In a loom, the combination witha lay provided with a weft stop-motion device, of a picking motiondevice and a shedding or hcddle-operating and box mechanism, and means,connected with and operated from said weft stop-motion device, whereby,when the latter is operated to stop the loom, the said picking motiondevice and the said sheddin or hcddle-operating and box mechanism w' beautomatically disconnected from their operating arts.

5. In a com, the combination with a lay provide with a weft stop motiondevice, of a pickeriiiaft, a pickin arm or lever disconnectably vjoinedto sai shaft, a-head motion ear com rising parts of a heddle orlshedingmec anism and of a boxmechanism,

means for disconnecting said picking arm or lever from its shaft, meansfor disconnecthig said head motion gear from lts driving shaft, a:breast beam, means mounted on said breast beam for. controlhng both. ofthe said disconnecting means, and a radius bar 09hr; v f

necting the said lay with the said controlling -mechanism and having anannular groove therein, a sliding clutch member provided with a dependinstud to clutch the parts together, said stur :having a recess or cut outopen to the annular groove when the parts are clutched, a bar rovidedwith a spring and means for actuating said bar to place the end thereofin the annular groove toengage with the recess or cut out in the studand elevate seine and the sliding clutch to unclutch the parts, and asecond bar provided with spring and actuated byithe'same means as t efirst named bar for entering'between the clutch members when unclutchedto hold them apart until the connections are, re- 1 stored to normalosition.

In testimony w ereof Iafliapmy signature in presence of two witnesses.

Witnesses:

THOMAS H; Hmsr,

Jenn RJSN LAM.

- EDWARD HOLLINGWORTHQ

